<?php

require_once __DIR__ . '/auth_check.php';

mnt_require_permission('maintenance.maintenances.view');

try {
    $pdo = mnt_pdo();

    $maintenanceId = (int)($_GET['maintenance_id'] ?? 0);
    $interventionId = (int)($_GET['id'] ?? 0);

    if ($interventionId > 0) {
        $stmt = $pdo->prepare("SELECT * FROM maint_interventions WHERE id = ?");
        $stmt->execute([$interventionId]);
        $intervention = $stmt->fetch(PDO::FETCH_ASSOC);

        if (!$intervention) {
            mnt_json_fail('Intervento non trovato.');
        }

        $stmt = $pdo->prepare("SELECT id, original_name FROM maint_intervention_files WHERE intervention_id = ?");
        $stmt->execute([$interventionId]);

        mnt_json_ok([
            'intervention' => $intervention,
            'files' => $stmt->fetchAll(PDO::FETCH_ASSOC),
        ]);
    }

    if ($maintenanceId <= 0) {
        mnt_json_fail('ID non valido.');
    }

    $stmt = $pdo->prepare("
        SELECT i.*,
            CONCAT(e.first_name, ' ', e.last_name) AS operator_full_name,
            s.supplier_name,
            (SELECT COUNT(*) FROM maint_intervention_files f WHERE f.intervention_id = i.id) AS file_count
        FROM maint_interventions i
        LEFT JOIN employees e ON e.id = i.operator_employee_id
        LEFT JOIN suppliers s ON s.idsupplier = i.supplier_id
        WHERE i.maintenance_id = ?
        ORDER BY i.performed_at DESC, i.id DESC
    ");
    $stmt->execute([$maintenanceId]);

    mnt_json_ok(['interventions' => $stmt->fetchAll(PDO::FETCH_ASSOC)]);
} catch (Throwable $e) {
    mnt_json_fail('Errore: ' . $e->getMessage());
}